Indexed

Indexed provides a private-company intelligence platform offering searchable data on companies, investors, and funding rounds. Users can look up companies by name or domain, explore detailed funding histories, investor relationships, and export data via a REST API. The service includes tiered pricing with free credits and paid plans for higher usage, API keys for authentication, and features such as bulk enrichment, webhooks, and scheduled exports.

Indexed publishes 8 API contracts indexed on the APIs.io network, including Companies API, Enrich API, Industries API, and 5 more. Tagged areas include Company, Data, Private Company, and Funding.

The Indexed catalog on APIs.io includes 1 JSON-LD context and 1 Spectral governance ruleset.

Indexed’s developer surface includes authentication, documentation, pricing, support, and 17 more developer resources.

🌐 Visit website 📡 Profile data on GitHub

44.8/100 developing ▬ flat Agent 26/100 agent aware Full breakdown ↓
scored 2026-10-17 · rubric v0.24.0

2 published contracts

Company Data Private Company Funding

What this lets a business do 1

Business capabilities this provider's published APIs can perform, derived from its own contracts. Browse all capabilities →

Developer Platform & API Ecosystem Management

BC-4270

UsageWebhooks

GET /webhooks POST /webhooks GET /webhooks/{id} POST /webhooks/{id}/test

Kin Score

Kin Score How this is scored →
scored 2026-10-17 · rubric v0.24.0

Composite quality — 44.8/100 · developing

Contract Quality 12.6 / 19

Developer Ergonomics 4.2 / 15

Access Clarity 9.5 / 15

Operational Transparency 0.0 / 10

Contract Governance 2.0 / 9

Discoverability 4.8 / 8

Regulatory Posture 3.7 / 15

Create-or-Update Ergonomics 0.0 / 10

Agent readiness — 26/100 · agent aware

Machine-Readable Contract 18 / 18

Agentic Access Contract 10 / 10

Documented Reversibility 0 / 6

MCP Server 0 / 12

Machine-Readable Auth 10 / 10

Idempotency 0 / 9

Stable Error Semantics 8 / 8

Request/Response Examples 7 / 7

Rate-Limit Signaling 7 / 7

Typed Event Surface 0 / 6

Agent Skills 5 / 5

Well-Known Catalog 0 / 4

Consent & Bot Identity 0 / 3

A2A Agent Card 0 / 8

Dry-Run / Simulate Mode 0 / 4

Delegated User Identity 0 / 6

Protected Resource Metadata 0 / 5

Registration Without a Human 0 / 6

Agentic Commerce Well-Known Document 0 / 5

Regulatory Posture applies to this provider. Its tags matched the Horizontal (data, software, accessibility, platform) regime, so Regulatory Posture carries 15 points of the composite. If this regime is wrong for your business, say so on your provider repo — the applicability map is public and we will correct it.

Create-or-Update Ergonomics applies to this provider. This API accepts writes, so it carries 10 points of the composite. It is scored from the published contracts themselves: whether a caller can create-or-update in one call, whether the write accepts a key the caller already holds, and whether the response says which branch ran. Without that, every write needs a search-and-branch in front of it, and the first time that check is skipped a duplicate record is created. Scored against the observed mean rather than raw — a provider at the catalog average is unchanged by this facet, not penalised by it.

The six quality facets above are damped to 75 points between them, because the conditional facet above carries the other 25. That is why each facet's contribution is shown against a damped maximum: raising a quality facet moves the composite by 75% of its nominal weight, not 100%. The full arithmetic is at apis.io/rating/.

Improve this rating by publishing the missing artifacts — every area above can be raised, and the full rubric is at apis.io/rating/. Every facet and dimension name above is a link: it opens that measurement's own page — what it means, the exact checks that feed it, how the whole catalog distributes on it, and the providers at the top of it. This rating is computed from github.com/api-evangelist/indexed-vc: open an issue to ask a question, or submit a pull request to add artifacts. Submit an artifact on GitHub — free → Manage your own listing — the Influence plan, $499/mo →

APIs 8

Individual APIs this provider publishes, each with its own machine-readable definition.

Indexed Companies API

The Companies API from Indexed — 3 operation(s) for companies.

Indexed Enrich API

The Enrich API from Indexed — 1 operation(s) for enrich.

Indexed Industries API

The Industries API from Indexed — 1 operation(s) for industries.

Indexed Investors API

The Investors API from Indexed — 2 operation(s) for investors.

Indexed Reveal API

The Reveal API from Indexed — 1 operation(s) for reveal.

Indexed Scheduled Exports API

The Scheduled Exports API from Indexed — 2 operation(s) for scheduled exports.

Indexed Usage API

The Usage API from Indexed — 1 operation(s) for usage.

Indexed Webhooks API

The Webhooks API from Indexed — 4 operation(s) for webhooks.

Scroll for all 8

Pricing Plans 1

Published pricing tiers and plan structures.

Indexed Vc Plans Pricing

5 plans

PLANS

Semantic Vocabularies 1

JSON-LD contexts and semantic vocabularies used across these APIs.

Indexed Vc Context

14 classes · 93 properties

JSON-LD

Spectral Rules 1

Spectral governance rulesets for linting and validating these APIs.

Indexed API Rules

14 rules · 10 errors 1 warnings 3 info

SPECTRAL

JSON Schema 6

Standalone JSON Schema definitions for this provider's data models.

CompanyCard

14 properties

JSON SCHEMA

CompanyDomainLookupItem

0 properties

JSON SCHEMA

CompanyProfile

23 properties

JSON SCHEMA

InvestorProfile

19 properties

JSON SCHEMA

SearchPageMeta

13 properties

JSON SCHEMA

UsageData

12 properties

JSON SCHEMA

Security Posture 2

Authentication, domain security, vulnerability disclosure, and trust-center signals.

Indexed Vc Authentication

apiKey · 1 scheme

SECURITY

Indexed Vc Domain Security

TLSv1.3 · HSTS · DMARC

SECURITY

Agentic Access 1

Recommended x-agentic-access execution contracts for AI agents.

Indexed Vc Agentic Access

19 operations · 8 acting

AGENTIC

Resources

Documentation 1

Reference material describing how the API behaves

Documentation

Documentation

Agent Surfaces 3

MCP servers, agent skills, and machine-readable catalogs

AgenticAccess

AgenticAccess

AgentSkill

AgentSkill

LLMsTxt

LLMsTxt

Design & Contract 6

Pagination, idempotency, versioning, errors, and events

Spectral

JSONLD

Vocabulary

DataModel

ErrorCatalog

Conformance

Access & Security 2

Authentication, authorization, and security posture

Authentication

Authentication

DomainSecurity

DomainSecurity

Operate 1

Status, limits, changes, and where to get help

Support

Support

Commercial 4

Pricing, plans, and the legal terms of use

Plans

Pricing

TermsOfService

PrivacyPolicy

Company 1

The organization behind the API

Website

Website

Other 3

Properties that don't map to a standard resource type

CapabilityMap

CapabilityMap

Hosts

Hosts

Vendors

Vendors

Source (apis.yml)

aid: indexed-vc
name: Indexed
image: https://indexed.vc/opengraph-image?2ed8c04617ed383e
description: Indexed provides a private-company intelligence platform offering searchable data on companies, investors, and
  funding rounds. Users can look up companies by name or domain, explore detailed funding histories, investor relationships,
  and export data via a REST API. The service includes tiered pricing with free credits and paid plans for higher usage, API
  keys for authentication, and features such as bulk enrichment, webhooks, and scheduled exports.
url: https://raw.githubusercontent.com/api-evangelist/indexed-vc/refs/heads/main/apis.yml
x-type: company
x-source: harvest:new-submission
x-tier: profiled
x-tier-reason: enrichment pass 2026-10-02 (modular-v1; was harvest)
specificationVersion: '0.20'
created: '2026-10-02'
modified: '2026-10-02'
tags:
- Company
- Data
- Private Company
- Funding
tags_raw:
- Company
- Data
- Private-Company
- Funding
- API
maintainers:
- FN: Kin Lane
  email: kin@apievangelist.com
- FN: APIs.json
  email: info@apis.io
common:
- type: CapabilityMap
  url: capabilities/indexed-vc-capability-edges.yml
  name: Indexed Business Capability Map
- type: AgenticAccess
  url: agentic-access/indexed-vc-agentic-access.yml
- type: Plans
  url: plans/indexed-vc-plans-pricing.yml
- type: Spectral
  url: rules/indexed-vc-rules.yml
- type: JSONLD
  url: json-ld/indexed-vc-context.jsonld
- type: Vocabulary
  url: vocabulary/indexed-vc-vocabulary.yml
- type: AgentSkill
  url: skills/_index.yml
- type: DataModel
  url: data-model/indexed-vc-data-model.yml
- type: ErrorCatalog
  url: errors/indexed-vc-problem-types.yml
- type: Conformance
  url: conformance/indexed-vc-conformance.yml
- type: LLMsTxt
  url: llms/indexed-vc-llms.txt
- type: Hosts
  url: hosts/indexed-vc-hosts.yml
- type: Vendors
  url: vendors/indexed-vc-vendors.yml
- type: Authentication
  url: authentication/indexed-vc-authentication.yml
- type: DomainSecurity
  url: security/indexed-vc-domain-security.yml
- type: Website
  url: https://indexed.vc
- type: Documentation
  url: https://indexed.vc/docs/api
- type: Pricing
  url: https://indexed.vc/pricing
- type: TermsOfService
  url: https://indexed.vc/terms
- type: PrivacyPolicy
  url: https://indexed.vc/privacy
- type: Support
  url: https://indexed.vc/contact
apis:
- aid: indexed-vc:indexed-vc-companies-api
  name: Indexed Companies API
  description: The Companies API from Indexed — 3 operation(s) for companies.
  humanURL: https://indexed.vc/docs/api
  baseURL: https://indexed.vc/api/v1
  tags:
  - Companies
  properties:
  - type: OpenAPI
    url: openapi/indexed-vc-companies-api-openapi.yml
  - type: JSONSchema
    url: json-schema/indexed-vc-company-profile-schema.json
  - type: JSONSchema
    url: json-schema/indexed-vc-search-page-meta-schema.json
  - type: JSONSchema
    url: json-schema/indexed-vc-investor-profile-schema.json
  - type: JSONSchema
    url: json-schema/indexed-vc-company-domain-lookup-item-schema.json
  - type: JSONSchema
    url: json-schema/indexed-vc-company-card-schema.json
  - type: JSONSchema
    url: json-schema/indexed-vc-usage-data-schema.json
- aid: indexed-vc:indexed-vc-enrich-api
  name: Indexed Enrich API
  description: The Enrich API from Indexed — 1 operation(s) for enrich.
  humanURL: https://indexed.vc/docs/api
  baseURL: https://indexed.vc/api/v1
  tags:
  - Enrich
  properties:
  - type: OpenAPI
    url: openapi/indexed-vc-enrich-api-openapi.yml
  - type: JSONSchema
    url: json-schema/indexed-vc-company-profile-schema.json
  - type: JSONSchema
    url: json-schema/indexed-vc-search-page-meta-schema.json
  - type: JSONSchema
    url: json-schema/indexed-vc-investor-profile-schema.json
  - type: JSONSchema
    url: json-schema/indexed-vc-company-domain-lookup-item-schema.json
  - type: JSONSchema
    url: json-schema/indexed-vc-company-card-schema.json
  - type: JSONSchema
    url: json-schema/indexed-vc-usage-data-schema.json
- aid: indexed-vc:indexed-vc-industries-api
  name: Indexed Industries API
  description: The Industries API from Indexed — 1 operation(s) for industries.
  humanURL: https://indexed.vc/docs/api
  baseURL: https://indexed.vc/api/v1
  tags:
  - Industries
  properties:
  - type: OpenAPI
    url: openapi/indexed-vc-industries-api-openapi.yml
  - type: JSONSchema
    url: json-schema/indexed-vc-company-profile-schema.json
  - type: JSONSchema
    url: json-schema/indexed-vc-search-page-meta-schema.json
  - type: JSONSchema
    url: json-schema/indexed-vc-investor-profile-schema.json
  - type: JSONSchema
    url: json-schema/indexed-vc-company-domain-lookup-item-schema.json
  - type: JSONSchema
    url: json-schema/indexed-vc-company-card-schema.json
  - type: JSONSchema
    url: json-schema/indexed-vc-usage-data-schema.json
- aid: indexed-vc:indexed-vc-investors-api
  name: Indexed Investors API
  description: The Investors API from Indexed — 2 operation(s) for investors.
  humanURL: https://indexed.vc/docs/api
  baseURL: https://indexed.vc/api/v1
  tags:
  - Investor
  tags_raw:
  - Investors
  properties:
  - type: OpenAPI
    url: openapi/indexed-vc-investors-api-openapi.yml
  - type: JSONSchema
    url: json-schema/indexed-vc-company-profile-schema.json
  - type: JSONSchema
    url: json-schema/indexed-vc-search-page-meta-schema.json
  - type: JSONSchema
    url: json-schema/indexed-vc-investor-profile-schema.json
  - type: JSONSchema
    url: json-schema/indexed-vc-company-domain-lookup-item-schema.json
  - type: JSONSchema
    url: json-schema/indexed-vc-company-card-schema.json
  - type: JSONSchema
    url: json-schema/indexed-vc-usage-data-schema.json
- aid: indexed-vc:indexed-vc-reveal-api
  name: Indexed Reveal API
  description: The Reveal API from Indexed — 1 operation(s) for reveal.
  humanURL: https://indexed.vc/docs/api
  baseURL: https://indexed.vc/api/v1
  tags:
  - Reveal
  properties:
  - type: OpenAPI
    url: openapi/indexed-vc-reveal-api-openapi.yml
  - type: JSONSchema
    url: json-schema/indexed-vc-company-profile-schema.json
  - type: JSONSchema
    url: json-schema/indexed-vc-search-page-meta-schema.json
  - type: JSONSchema
    url: json-schema/indexed-vc-investor-profile-schema.json
  - type: JSONSchema
    url: json-schema/indexed-vc-company-domain-lookup-item-schema.json
  - type: JSONSchema
    url: json-schema/indexed-vc-company-card-schema.json
  - type: JSONSchema
    url: json-schema/indexed-vc-usage-data-schema.json
- aid: indexed-vc:indexed-vc-scheduled-exports-api
  name: Indexed Scheduled Exports API
  description: The Scheduled Exports API from Indexed — 2 operation(s) for scheduled exports.
  humanURL: https://indexed.vc/docs/api
  baseURL: https://indexed.vc/api/v1
  tags:
  - Scheduled Exports
  properties:
  - type: OpenAPI
    url: openapi/indexed-vc-scheduled-exports-api-openapi.yml
  - type: JSONSchema
    url: json-schema/indexed-vc-company-profile-schema.json
  - type: JSONSchema
    url: json-schema/indexed-vc-search-page-meta-schema.json
  - type: JSONSchema
    url: json-schema/indexed-vc-investor-profile-schema.json
  - type: JSONSchema
    url: json-schema/indexed-vc-company-domain-lookup-item-schema.json
  - type: JSONSchema
    url: json-schema/indexed-vc-company-card-schema.json
  - type: JSONSchema
    url: json-schema/indexed-vc-usage-data-schema.json
- aid: indexed-vc:indexed-vc-usage-api
  name: Indexed Usage API
  description: The Usage API from Indexed — 1 operation(s) for usage.
  humanURL: https://indexed.vc/docs/api
  baseURL: https://indexed.vc/api/v1
  tags:
  - Usage
  properties:
  - type: OpenAPI
    url: openapi/indexed-vc-usage-api-openapi.yml
  - type: JSONSchema
    url: json-schema/indexed-vc-company-profile-schema.json
  - type: JSONSchema
    url: json-schema/indexed-vc-search-page-meta-schema.json
  - type: JSONSchema
    url: json-schema/indexed-vc-investor-profile-schema.json
  - type: JSONSchema
    url: json-schema/indexed-vc-company-domain-lookup-item-schema.json
  - type: JSONSchema
    url: json-schema/indexed-vc-company-card-schema.json
  - type: JSONSchema
    url: json-schema/indexed-vc-usage-data-schema.json
- aid: indexed-vc:indexed-vc-webhooks-api
  name: Indexed Webhooks API
  description: The Webhooks API from Indexed — 4 operation(s) for webhooks.
  humanURL: https://indexed.vc/docs/api
  baseURL: https://indexed.vc/api/v1
  tags:
  - Webhook
  tags_raw:
  - Webhooks
  properties:
  - type: OpenAPI
    url: openapi/indexed-vc-webhooks-api-openapi.yml
  - type: JSONSchema
    url: json-schema/indexed-vc-company-profile-schema.json
  - type: JSONSchema
    url: json-schema/indexed-vc-search-page-meta-schema.json
  - type: JSONSchema
    url: json-schema/indexed-vc-investor-profile-schema.json
  - type: JSONSchema
    url: json-schema/indexed-vc-company-domain-lookup-item-schema.json
  - type: JSONSchema
    url: json-schema/indexed-vc-company-card-schema.json
  - type: JSONSchema
    url: json-schema/indexed-vc-usage-data-schema.json
x-submission-notes: 'Private-company data API: lookup by name/domain with funding rounds and investors.'
x-submission-probe: root 200; docs 200; OpenAPI 3.1.0 15 paths server indexed.vc/api/v1; llms.txt 200; 404 probe 429 (Vercel
  checkpoint)
x-submitted-by: hello@indexed.vc (apis.io/add, 2026-09-30)
x-enrichment:
  date: '2026-10-02'
  status: enriched
  artifacts_added: 19
  pass: modular-v1
  engine: identity=local,contract=local,surfaces=local,docs=local,regulatory=local

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